PIAGGIO Beverly Tourer 250 i.e. Service Station Manual page 14

Characteristics
Name
Cylinder
Cylinder
Piston
Piston
Crankcase - crankshaft - connecting rod
- Measure the diameter of bushings «A» in the
three directions shown in the figure.
- Measure the diameter of the crankshaft bearings
«B».
- Check that the diametral clearance «A-B» is be-
tween the pre-set interval.
Characteristic
Diameter clearance
0.023 ÷ 0.041 mm
If value «A-B» is above the limit, check that value «B» is within the admissible values of the categories.
Specification
Category 1
Category 2
If the crankshaft is within the set limits, replace the crankshaft half-bearings mounting the crankcase
so as to suit the specified couplings. The crankcase halves can be mounted with three types of crank-
shaft half-bearings identified by letters A (red), B (blue), C (yellow), E (green).
Specification
Category 1
Category 2
CRANKCASE - CRANKSHAFT COUPLING / CRANKSHAFT HALF-BEARINGS
Specification
Crankshaft category 1 - Crankcase category 1
Crankshaft category 2 - Crankcase category 1
Crankshaft category 1 - Crankcase category 2
Crankshaft category 2 - Crankcase category 2
CHAR - 14
ENGINE COUPLING CATEGORY
Initials Cylinder
M 72.01 ÷ 72.017
N 72.017 ÷ 72.024
O 72.024 ÷ 72.031
P 72.031 ÷ 72.038
CRANKSHAFT
CRANKCASE
Beverly Tourer 250 i.e.
Piston Play on fitting
71.953 ÷ 71.960 0.050 - 0.064
71.960 ÷ 71.967 0.050 - 0.064
71.967 ÷ 71.974 0.050 - 0.064
71.974 ÷ 71.981 0.050 - 0.064
Desc./Quantity
28.998 ÷ 29.004
29.004 ÷ 29.010
Desc./Quantity
32.959 ÷ 32.965
32.953 ÷ 32.959
Desc./Quantity
E - E
C - C
C - C
B - B